baber/WOPTO huggingface dataset:
Patent CA-2017620-A1 (CA)
Title: Alkylation of organic aromatic compounds in a dual bed system
Inventor: ARGANBRIGHT ROBERT P
IPC: C07C2/66
Filed: 1990-05-28
Abstract: ABSTRACT OF THE DISCLOSURE        Cumene  is  produced  in  a  catalytic  distillation  column reactor  having  an  upper  bed  of  Omega  type  molecular  sieve catalyst and a lower bed of Y type molecular sieve catalyst.           Benzene and propylene are reacted in the upper bed where the Omega type sieve is more selective to cumene that the Y type sieve.  Part of the reaction mixture flows down the column to the Y  bed where  benzene  reacts with any unreacted propylene  to produce  cumene.     Additionally,  benzene  reacts  with dipropylbenzene in the Y bed to produce more cumene.  Cumene is recovered as bottoms product and unreacted benzene recovered as overheads where it may be returned as reflux to the column to control the mole ratio of benzene to propylene.            CRL.PAT\1133.APP  29
Patent CA-2020279-A1 (CA)
Title: Wide duty cycle high side drive (wd-hsd)
Inventor: MESZLENYI IVAN
IPC: H03K5/00
Filed: 1990-07-03
Abstract: ABSTRACT          The Wide Duty Cycle High Side Drive (WD-HSD) consists of a pulse transformer, a first capacitor, first and second diodes, and a second capacitor.          This circuitry is then buffered by the first and second transistors through a resistor such that the secondary of the pulse transformer is connected to a junction of the first and second diodes. From the junction of the first and second diodes of the first capactior, the signal is directed to a junction of the base of the first and second transistors via a resistor.          The replica of the input signal could be derived from the junction of the emmittors of the first and second transistors for any duty cycle.
Patent CA-2020988-A1 (CA)
Title: Acid etch resistant coatings
Inventor: GARDON JOHN L
IPC: G01F1/692
Filed: 1990-07-12
Abstract: A high solids coating composition suitable for use, for example, as a high performance automotive coating is provided, which comprises (1) a particular polyurethane polyol which is the reaction product of an asynunetric diol component and an isocyanate component, and (2) an hydroxyl groups-reactive crosslinking agent. When formulated as a one-pack coating preferably with an aminoplast crosslinking agent, these coating compositions possess a number of desirable properties including excellent acid etch resistance.
Patent CA-2022281-A1 (CA)
Title: Fluid accumulator for use in a vehicle anti-lock brake system
Inventor: SIVULKA GERALD M
IPC: B60T8/34
Filed: 1990-07-30
Abstract: An accumulator assembly for a vehicle anti-lock brake system receives and temporarily stores fluid during pressure reduction phases of the anti-lock operation, and maintains fluid stored therein substantially at or near zero pressure during anti-lock operation. The accumulator enables the fluid pressure to the controlled brakes to be reduced to substantially near zero pressure. The accumulator is further operative, after braking of the vehicle, to apply a predetermines pressure above zero pressure to the brake fluid stored therein to enable the fluid to be returned to the brake system. The accumulator is advantageously used in a pumpless anti-lock system which is operative to control the rear disc brakes of a light pick-up truck.
Patent CA-2025063-A1 (CA)
Title: Process and device for the input and carrying away of smoking or cooking rods for automatic suspension of a plurality of sausages
Inventor: STEINBIS FRITZ K
IPC: B65G47/84
Filed: 1990-09-11
Abstract: Abstract A process for the input and carrying away of smoking rods or cooking rods to and from a station for the automatic suspension of sausages provided with loops on a rod which in turn is tightly chucked at one end works as follows the rods are first brought out of a storage area one after the other into horizontal arrangement in a readiness position. Then one rod is tightly chucked there and is fed by a horizontal movement to the loading station; finally the loaded rod is picked up at both ends and fed in the same direction as before to a holding station, in which a number of loaded rods are collected for transfer by being shoved onto a smoking or cooking wagon. The process is carried out nearly without dead time, and is accomplished by an operator who remains for the most part independent of the filling and suspending cycle.
Patent CA-2025150-A1 (CA)
Title: Pyridinyl-quinolone compounds, their preparation and use
Inventor: LESHER GEORGE Y
IPC: C07C45/46
Filed: 1990-09-12
Abstract: PYRIDINYL-QUINOLONE COMPOUNDS, THEIR PREPARATION AND USE                     ABSTRACT           Fluorinated   1-cyclopropyl-7-(substituted-pyri-dinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic  acids  of the formula   wherein R id hydrogen, R' and R" are hydrogen or fluoro, and Z is 3- or 4-pyridinyl substituted by alkyl groups or substituted alkyl groups,  are superior antibacterial agents.  They are prepared via a coupling reaction between the corresponding esters (R = alkyl) having a halo group in  the  7-position  and  a  substituted  (trialkylstannyl)-pyridine.
Patent CA-2025908-A1 (CA)
Inventor: WAYMAN WILLIAM H
IPC: G03G15/06
Filed: 1990-09-21
Abstract: An apparatus which measures the usage of toner in a developer unit. A donor roll receives toner material from a mixer. The mixer fluidizes the toner with the pressure from newly discharged toner moving the fluidized toner from one end of the developer unit to the other end thereof. An electrical bias is applied between the donor roll and mixer. The current biasing the mixer is detected and a signal transmitted in response thereto corresponding to the usage of toner in the developer unit. This signal controls the discharge of toner into the developer unit.
Patent CA-2026336-A1 (CA)
Inventor: FUELING JAMES J
IPC: F01N1/06
Filed: 1990-09-27
Abstract: A muffler for use with an internal combustion engine or the like having improved attenuation capabilities.  The muffler of the disclosure comprises at least two separate passages interconnected in series with a single or multiple output exhaust manifold and a single or multiple tail pipe of an engine exhaust system.  At least one of the passages has a length greater than the other or others.  The total cross-sectional area of the passages is approximately equal to or greater than the cross-section of the single or multiple exhaust manifold and single or multiple tail pipe to eliminate back pressure and maintain column inertia.  In an embodiment, a housing encloses the passages and the overall appearance is that of a conventional muffler.  In still another embodiment, at least one of the passages within the housing are perforated with a plurality of apertures.  These apertures can be all of the same dimension or can be of different cross-sectional areas.  In still another embodiment, the space between the passages and the inside housing walls is filled with a sound absorbing material.
Patent CA-2028573-A1 (CA)
Title: Gas spring
Inventor: WALLIS BERNARD J
IPC: B21D24/02
Filed: 1990-10-25
Abstract: GAS SPRING     Abstract of the Disclosure A gas spring comprising a cylindrical body having a base wall and an integral side wall with an open upper end defining a bore.  The bore includes a lower cylindrical portion and an upper cylindrical portion of greater diameter than the lower cylindrical portion defining a shoulder.  A piston of constant diameter is positioned in the bore and has a radial flange on its lower end with a wear bearing contacting the lower portion of the bore.  An annular retainer is positioned on the shoulder and is adapted to be engaged by the flange on the piston. An annular end cap is threaded in the upper cylindrical portion of the bore and maintains the retainer against the shoulder.  An annular lock nut is threaded in the upper portion of the bore and locks the end caps in position. Circumferentially spaced radial openings are provided adjacent the periphery of the lock nut for venting gas during disassembly if any gas remains. A charging valve and a rupture plug including pressure relief disc are provided in the base wall.  In one form, the gas spring includes a plurality of longitudinal spaced annular ribs which provide heat dissipation.
Patent CA-2031215-A1 (CA)
Title: Arrangement in general cargo ships having side port openings
Inventor: ARALT PER T
IPC: B63B19/08
Filed: 1990-04-20
Abstract: A general cargo ship (10) is equipped with side port openings (34, 35) for transporting freight (59) inwardly and outwardly from the ship. The ship (10) is equipped with an upper superstructure (25) in a continuous length above a fore-and-aft row of upwardly opening holds (11a-11f). The holds have maximum hatchways. There is defined in the superstructure a common, shielding transport compartment (33) for the holds which permits movement of a transport arrangement (36, 37) with freight (58) fore-and-aft and transversely a distance above the holds and via a locally defined side paort opening (34).
Patent CA-2031618-A1 (CA)
Inventor: AUDEBERT ROLAND
IPC: B01D21/01
Filed: 1990-12-05
Abstract: La présente invention concerne un nouvel agent floculant et adsorbant et un procédé de traitement des eaux mettant en oeuvre lesdits agents. Ces agents sont des gels et/ ou des polymères cationiques qui répondent aux formules (I) et (II): (I) dans laquelle x = y + z; 0 < y < 1; 0 < z < 0,1; 1 ? n ? 5 et de préférence n ? 2, R1, R2 et R3 identiques ou différents, étant un atome d'hydrogène ou un groupement alkyle; (II) dans laquelle 0,3 ? x ? 1; 1 ? n ? 5; R1, R2 et R3 identiques ou différents, étant un atome d'hydrogène ou un groupement alkyle.
Patent CA-2038389-A1 (CA)
Inventor: WRIGHT KEITH
IPC: F16H61/28
Filed: 1991-03-15
Abstract: Solenoid actuator open-circuit and closed-circuit faults are detected using shunt resistors (R1, R4) across the solenoid (1), a transistor switch (4), a voltage monitor (7) and/or (14) across one or both of these which can detect a faulty open-circuit solenoid that is not energized, or a faulty closed-circuit solenoid that is energized.         The invention proposes that, before each change in actuator position, the solenoids are all energized to an opposite condition for a time insufficient to move the actuator, but enough to check the voltage monitor responses.  In this way, all open and closed circuit faults are detected.
Patent CA-2040117-A1 (CA)
Title: Nail clipper unit
Inventor: KHANNA VIR K
IPC: A45D29/02
Filed: 1991-04-09
Abstract: Abstract:   The  conventional  nail  clipper  is  the one most commonly known. It is common experience of many who use conventional nail clipper to have nail clippings  scattering  all  over  as  fingernails and toenails are being clipped.  The  present  invention  is designed to prevent scattering and also to provide storage within the clipper to hold back clippings, which can be disposed off at convenient time and at appropriate place.
Patent CA-2040503-A1 (CA)
Title: Selective amplification system using q beta replicase
Inventor: STEFANO JAMES E
IPC: C12Q1/68
Filed: 1991-04-15
Abstract: SELECTIVE AMPLIFICATION SYSTEM USING Q BETA REPLICASE                 Abstract of the Disclosure Mutant forms of midivariant RNA are disclosed which are replicated efficiently by the enzyme Q.beta. replicase in the presence of an agent(s) which is useful for the real time, quantitative detection of the accumulating RNA products.  This agent(s) also suppresses the replication of non-mutant wild type midivariant RNA.  The mutant MDV RNAs, when modified by the addition of specific probe sequences, retain their replication properties in the presence of the detection agent.  This method allows the replication to be monitored using a real time mode thereby providing a reliable method for monitoring the kinetics of the reaction, and determining the initial level of amplified RNA.
Patent CA-2040747-A1 (CA)
Title: Pyridine derivatives
Inventor: ROBERTS DAVID ANTHONY
IPC: A61P9/00
Filed: 1991-04-18
Abstract: ABSTRACT     PYRIDINE DERIVATIVES            The invention concerns pharmaceutically useful novel compounds of the formula I, in which R1, R2, R3, R4, R5, R6, R7, X and Z have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them.  The novel compounds are of value in treating conditions such as hypertension and congestive heart failure.  The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
Patent CA-2046132-A1 (CA)
Title: Process for the preparation of an aluminum and tin or titanum oxide layer on glass; glass thus obtained and uses in semi-conducting glassware
Inventor: ZAGDOUN GEORGES
IPC: C03C17/25
Filed: 1991-07-03
Abstract: An aluminium-tin oxide layer is formed on glass by thermal decomposition of organic aluminium and tin cpds. in contact with the hot glass at below its softening temp., and oxidn. to form the layer. In the process, a soln. of a non-hydrolysable aluminium chelate and one or more organic tin cpds. is sprayed on to the hot glass. Also claimed are: (i) a product obtained by the above process and comprising a glass support with an aluminium-tin oxide layer having a refractive index of 1.65-1.76; and (ii) low emissivity glazing, heating glazing (pref. in laminated form with an interposed foil of PVB, PVC or PU), glazing for use as substrate for opto-electronic devices and anti-reflection glazing, the glazing including the above product. The aluminium chelate is pref. aluminium acetylacetonate or aluminium isovaleryl acetonate. The tin cpd. is pref. dibutyltin oxide (DBTO) or dibutyltin acetate (DBTA). The soln. pref. contains 13-30 vol.% DBTA or 30-50 vol.% DBTO and has an Al/Sn wt. ratio of 0.10-0.70. The glass is pref. at 600-650 degrees C and is pref. moved at 3-25 m./sec.
Patent CA-2049145-A1 (CA)
Title: Method and apparatus for unmanned aircraft in flight refueling
Inventor: LOUCKS KENNETH W
IPC: B64C39/02
Filed: 1991-08-13
Abstract: METHOD AND APPARATUS FOR UNMANNED AIRCRAFT             IN FLIGHT REFUELING     ABSTRACT   A method and apparatus for in-flight refueling of unmanned aircraft includes a manned tanker aircraft having a refueling probe mounted thereon.  The probe is extendable for increased visual reference.  A drogue mounted on the distal end of a flexible refueling hose is trailed from the unmanned aircraft.  The refueling hose is stored on a reel assembly mounted on the fuel tank of unmanned aircraft.          The reel assembly is remotely actuated from the manned tanker to pay out the refueling hose. A homing system transmits signals from the manned aircraft guiding the drogue to the probe.  Upon insertion of the probe into the drogue, automatic coupling occurs and the unmanned aircraft is refueled.
Patent CA-2049201-A1 (CA)
Inventor: OHHASHI YUTAKA
IPC: B05B12/08
Filed: 1991-08-14
Abstract: There is disclosed a method of applying a metallic paint to an object conveyed by means of a conveyor, by reciprocating one or more rotary atomizing electrostatic painting machines at right angles to the direction in which the object is conveyed. The speed of the reciprocation of the painting machines is controlled according to the speed of the conveyor so that the pitch between the adjacent orbits of the strokes of the reciprocation of the machines drawn on the object may become a predetermined value.
Patent CA-2049337-A1 (CA)
Inventor: KAMEN DEAN L
IPC: F04B43/04
Filed: 1990-04-27
Abstract: A system for measuring flow of fluid through a line. A portion of the fluid in the line is isolated in a rigid container so that the fluid in the container is not affected by pressure in the rest of the line. An apparatus is provided for measuring that portion of the container that is not occupied by the fluid. In order to urge fluid into and out of the container, a positive pressure source, for providing gas to the container, and a negative pressure source for removing gas from the container, are provided for.
Patent CA-2053423-A1 (CA)
Inventor: MONGIN MARC
IPC: G08B25/08
Filed: 1991-10-15
Abstract: In order to resolve problems of management of a remote monitoring service, of the on-demand type, it has been shown that the system of prepayment with chip cards (11) comprising a prepayment indication (48) can be interposed (10) between a central alarm station (1) and a remote monitoring centre (6) responsible for the monitoring. The transmission (8) of alarms is carried out conventionally. In contrast, periodic checks of the state of the system which up to the present were on the initiative of a transmitter (4) now become (47) on the initiative of a reader (10) responsible for reading the state of a chip card. <IMAGE>
Patent CA-2057356-A1 (CA)
Title: Fire retardant epoxy resin compositions
Inventor: FISCHER ROBERT G JR
IPC: C08G59/00
Filed: 1991-12-10
Abstract: 31,568-00 FIRE RETARDANT EPOXY RESIN COMPOSITIONS   ABSTRACT OF THE INVENTION       Thermosetting epoxy resin compositions having improved flame retardancy having combined therewith an effective amount of a dihydroxymethyl phosphine oxide having the general formula                 (I) wherein R represents an alkyl group having from 1 to about 8 carbon atoms or -R'OH where R' represents an alkylene group having from 2 to about 8 carbon atoms, are disclosed.
Patent CA-2059653-A1 (CA)
Title: Device for rapidly repairing the headplate of a blast furnace
Inventor: MENUGE JACQUES
IPC: C21B7/12
Filed: 1991-06-12
Abstract: Device for rapidly repairing the headplate of a blast furnace in the region of the taphole insert characterized in that it comprises a sleeve (10) of a consumable material to be fixed on the nose of the sealing device by compression against the headplate of the blast furnace in the region of the taphole during the sealing process and also a component (14) of a refractory material which is preformed inside the sleeve so as to be compressed against the headplate by the sealing device and adhere to the surface of said headplate, thereby providing a refractory protective lining with a recoating action.
Patent CA-2059966-A1 (CA)
Title: Cleaning device for cleaning carpets
Inventor: SMITH ALEXANDER L
IPC: A47L5/14
Filed: 1992-01-23
Abstract: ABSTRACT OF THE DISCLOSURE           A  plurality of nozzles is mounted inside a casing  for projecting  air jets through bristles of a carpet for  dislodging lint  between the bristles.   The lint which is projected out  of the  bristles is sucked away through an aperture in  the  caging. The casing is manually or automatically moved over the carpet.
Patent CA-2061451-A1 (CA)
Title: Process for separating polyethylene terephthalate from polyvinyl chloride
Inventor: SISSON EDWIN A
IPC: C08J11/06
Filed: 1992-02-18
Abstract: Today there is a growing demand to recycle plastics including polyethylene terephthalate.      Sources of polyethylene terephthalate for recycling often contain polyvinyl chloride. It is necessary to separate polyvinyl chloride from the polyethylene terephthalate before it can be recycled into useful products. This invention reveals a process for recovering polyethylene terephthalate flakes from a recycle stream containing polyethylene terephthalate flakes and polyvinyl chloride flakes which comprises: (1) treating the recycle stream with (a) at least one inorganic base selected from the group consisting of sodium hydroxide and potassium hydroxide and (b) at least one nonionic surfactant under conditions and for a time sufficient to decrease the contact angle of the polyethylene terephthalate flakes with water below a value of 25° while maintaining the contact angle of the polyvinyl chloride flakes above a value of about 45°; (2) adding the treated recycle stream to water, to form an aqueous mixture containing the treated polyethylene terephthalate flakes and treated polyvinyl chloride flakes; (3) agitating the aqueous mixture to allow the polyvinyl chloride flakes to come in contact with gas bubbles; (4) allowing the polyvinyl chloride flakes to float to the surface of the aqueous mixture and allowing the polyethylene terephthalate flakes to sink to the bottom of the aqueous mixture; and (5) removing the polyvinyl chloride flakes from the surface of the aqueous mixture and removing the polyethylene terephthalate flakes from the bottom of the aqueous mixture.
Patent CA-2062841-A1 (CA)
Title: Apparatus and method for non-stop switching in asynchronous transfer mode
Inventor: KONDO RYUICHI
IPC: H04L12/70
Filed: 1992-03-12
Abstract: According to the present invention, when a current system is switched to a spare system in a transmission system in an asynchronous transfer mode, empty cells transmitted in the current and spare systems are detected, and thereby a timing for switching the current system to the spare system is determined.  When no phase difference is existent between the current and spare systems, an empty cell is detected in both the current and spare systems at the same time.  Therefore, the current system is switched to the spare system, when an empty cell is detected in both the current and spare systems at the same time.  When a shade difference is existent, if an empty cell is detected either in the current or spare systems, another empty cell is inserted in to the systems.  Then, the data of the empty cell in a spare system is saved.  After the empty cell in a current system passes, the current system is switched to the spare system.  When a phase difference of at least one cell is existent, and if an empty cell comes earlier in current system, empty cell are kept inserted form when the empty cell is detected in the current system until an empty cell is detected in the spare system. After that, the current system is switched to the spare system.  When an empty cell comes earlier in a spare system, the data of the cell in the spare system is saved from when the empty cell is detected until an empty cell is detected in the current system.  After that, the current system is switched to the spare system.
Patent CA-2064107-A1 (CA)
Title: Method and apparatus for recovering a standard television signal from a modified signal
Inventor: BUDAI KAROLY
IPC: H04N7/167
Filed: 1992-03-27
Abstract: ABSTRACT OF THE DISCLOSURE          A standard television signal is recovered from one which has been modified to inhibit unauthorized recording/reproduction by changing the number of horizontal line intervals which constitute a frame, according to predetermined profile patterns.  Recovery is accomplished by digitizing each field of the modified signal, writing the field into memory, reading a field with a standard number of lines from memory and converting it to analog form.  Recovery of the standard number of horizontal lines can be performed while writing the field into memory, while reading the field out of memory or while the field is in memory.     WP7:2040.APP
Patent CA-2065141-A1 (CA)
Title: Angled sidewall coring assembly and method of operation
Inventor: EATON NICK G
IPC: E21B49/06
Filed: 1992-04-03
Abstract: ABSTRACT OF THE DISCLOSURE       The present invention is a sidewall coring assembly and method for taking a core sample at an angle to an existing borehole. The assembly includes a core barrel run at the end of a drill string and having a whipstock suspended below it, the whipstock having a anchor packer at its lower end.  The packer is hydraulically inflated through the core barrel and an hydraulic line extending from the bottom thereof, the core barrel is released from the whipstock and the hydraulic line, and lowered to core at the angle and azimuth dictated by the whipstock.  After coring is completed, the core barrel is withdrawn from the well and subsequently the whipstock and packer are retrieved with a stinger run on the drill string.
Patent CA-2065456-A1 (CA)
Inventor: SHANKLAND IAN R
IPC: C11D7/50
Filed: 1990-08-02
Abstract: 2065456 9105027 PCTABS00004 Azeotrope-like compositions of pentafluoroethane and difluoromethane useful for heating and cooling applications.